68272436156 has 24 divisors (see below), whose sum is σ = 121167631200. Its totient is φ = 33655790592.

The previous prime is 68272436153. The next prime is 68272436159. The reversal of 68272436156 is 65163427286.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68272436153) and next prime (68272436159).

It is a super-2 number, since 2×68272436156² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68272436153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232481 + ... + 436568.

It is an arithmetic number, because the mean of its divisors is an integer number (5048651300).

Almost surely, 2^68272436156 is an apocalyptic number.

It is an amenable number.

68272436156 is a deficient number, since it is larger than the sum of its proper divisors (52895195044).

68272436156 is a wasteful number, since it uses less digits than its factorization.

68272436156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669413 (or 669411 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The spelling of 68272436156 in words is "sixty-eight billion, two hundred seventy-two million, four hundred thirty-six thousand, one hundred fifty-six".